chore: 并入 iotlcm-admin-svr 历史到 admin-svr/（原提交 49818c6）

admin-svr/server/internal/logic/upstream/diagnosis_response.go

@@ -0,0 +1,42 @@
+package upstream
+
+import (
+	"context"
+	"encoding/json"
+	"math"
+	"net/http"
+
+	"github.com/gogf/gf/v2/errors/gerror"
+	"github.com/gogf/gf/v2/net/gclient"
+)
+
+func readQueryResponse(ctx context.Context, response *gclient.Response) ([]byte, error) {
+	defer response.Close()
+	body := response.ReadAll()
+	if preserveUpstreamResults(ctx) {
+		if response.StatusCode < http.StatusOK || response.StatusCode >= http.StatusMultipleChoices {
+			return nil, gerror.Newf("上游查询失败，HTTP状态码：%d", response.StatusCode)
+		}
+		var envelope struct {
+			Code *int `json:"code"`
+		}
+		if err := json.Unmarshal(body, &envelope); err != nil || envelope.Code == nil {
+			return nil, gerror.New("上游响应缺少有效状态码")
+		}
+	}
+	return body, nil
+}
+
+func diagnosisNumericValuePresent(body []byte, index int, field string) bool {
+	var envelope struct {
+		Data []struct {
+			ResData map[string]json.RawMessage `json:"resData"`
+		} `json:"data"`
+	}
+	if json.Unmarshal(body, &envelope) != nil || index >= len(envelope.Data) {
+		return false
+	}
+	raw := envelope.Data[index].ResData[field]
+	var value *float64
+	return json.Unmarshal(raw, &value) == nil && value != nil && !math.IsNaN(*value) && !math.IsInf(*value, 0) && *value >= 0
+}